Castle Rock, CO ZIP Codes
3 ZIP codes serve Castle Rock, Colorado: 80104, 80108 and 80109. Together they are home to 103,609 residents in 37,105 households. That is more than the 79,123 people counted inside Castle Rock town limits, because these ZIP codes reach past its boundary. Median household income ranges from $134,335 in 80104 to $181,049 in 80108.
Castle Rock town limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 79,123 |
| Households | 28,219 |
| Median household income | $145,197 |
| Median home value | $652,900 |
| Median age | 36.5 |
| Median rent | $2,000 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 103,609 |
| Households (sum of ZIP codes) | 37,105 |
| Median household income, range across ZIP codes | $134,335 (80104) to $181,049 (80108) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $156,118 |
| Homeowners | 81.0% |
| Households with kids under 18 | 40.4% |
| Moved in the past year | 15.4% |
| Carrier routes in EDDM2GO's route library | 65 routes, 42,471 homes (3 of 3 ZIP codes) |
Top facts
- Highest median household income in Castle Rock: 80108 ($181,049)
- Most residents: 80104 (38,479 people)
- Highest homeownership: 80108 (82.6% own their home)
- Most households with kids: 80109 (45.4% of households)
- Most new movers: 80104 (17.6% moved in last year)
- Youngest median age: 80109 (36.9 years)
- Highest median home value: 80108 ($881,700)
Every ZIP code in Castle Rock
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 80104 | Castle Rock | 38,479 | 14,383 | $134,335 | $624,200 | 79.4% | 36.2% | 17.6% | 25 | 16,859 | 19% of its land; mailing city |
| 80108 | Castle Rock | 36,730 | 12,994 | $181,049 | $881,700 | 82.6% | 41.4% | 13.7% | 25 | 16,272 | 22% of its land; mailing city |
| 80109 | Castle Rock | 28,400 | 9,728 | $155,025 | $675,500 | 81.4% | 45.4% | 14.5% | 15 | 11,025 | 49% of its land; mailing city |
A ZIP code is listed for Castle Rock when at least 10% of its land lies inside Castle Rock town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Castle Rock. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Castle Rock.
Counties
- Douglas County — 15 ZIP codes
Nearby cities sharing these ZIP codes
- Castle Pines — 1 ZIP code
Price a mailing to Castle Rock ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Castle Rock, CO?
- 80104, 80108 and 80109. A ZIP code is listed for Castle Rock when at least 10% of its land lies inside Castle Rock town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Castle Rock.
- What is the population of Castle Rock, CO?
- The Census Bureau counts 79,123 residents inside Castle Rock town limits (ACS 2020–2024). The 3 ZIP codes that serve Castle Rock hold 103,609 residents in all.
- What is the median household income in Castle Rock, CO?
- $145,197 inside Castle Rock town limits, per the Census Bureau. Across its ZIP codes the medians run from $134,335 to $181,049.
- Which Castle Rock ZIP code has the highest median household income?
- 80108, at $181,049, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Castle Rock, CO?
- For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 65 carrier routes reaching 42,471 residential and 1,686 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.